E66.81
Non-billableObesity class
Obesity class
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
Code First
The underlying condition must be sequenced before this code
Use Additional Code
Additional codes that should follow this code
Child Codes (3)
Related Codes(1)
Related Conditions
Also Known As / Clinical Terms(1)
Related ICF Categories(30)
The ICF Core Set for Obesity identifies functioning domains commonly assessed with this condition.
Energy and drive functions
Sleep functions
Emotional functions
Sensation of pain
Immunological system functions
Respiration functions
Exercise tolerance functions
Weight maintenance functions
General metabolic functions
Sexual functions
Carrying out daily routine
Walking
Moving around
Driving
Looking after one's health
Doing housework
Acquiring, keeping and terminating a job
Remunerative employment
Community life
Recreation and leisure
Products or substances for personal consumption
Immediate family
Health professionals
Individual attitudes of immediate family members
Individual attitudes of health professionals
Societal attitudes
Communication services, systems and policies
Transportation services, systems and policies
Social security services, systems and policies
Health services, systems and policies
Frequently Asked Questions
What is the ICD-10 code for obesity class?
The ICD-10-CM code for obesity class is E66.81. The full clinical description is "Obesity class". E66.81 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code E66.81 mean?
ICD-10-CM code E66.81 represents “Obesity class”. It is classified under Chapter 4: Endocrine, Nutritional and Metabolic Diseases and is a non-billable header code. Use a more specific child code for billing purposes.
Is E66.81 a billable code?
No, E66.81 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 3 child codes under E66.81.
What chapter is E66.81 in?
E66.81 is in Chapter 4: Endocrine, Nutritional and Metabolic Diseases (codes E00-E89).
What codes cannot be used with E66.81?
E66.81 has Excludes1 notes indicating codes that cannot be used together with it, including: transitory endocrine and metabolic disorders specific to newborn (P70-P74).
What are the subcategories under E66.81?
E66.81 has 3 child codes, including: E66.811 (Obesity, class 1), E66.812 (Obesity, class 2), E66.813 (Obesity, class 3).
Are additional codes required with E66.81?
Yes, when using E66.81, also report: body mass index (BMI), if known, for adults (Z68.1-Z68.45) or pediatrics (Z68.5-).
What are the UMLS CUIs for E66.81?
E66.81 is linked to 1 UMLS Concept Unique Identifier: C5926646. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
What ICF functioning codes are related to obesity class?
The ICF Core Set for Obesity includes 30 functioning categories covering body functions, activities, and environmental factors commonly assessed with this condition. Browse the ICF directory.
What is the ICD-11 equivalent of E66.81?
There is no direct ICD-11 mapping available for E66.81 in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-11. Use the ICD-10 to ICD-11 converter to search for related codes.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.